mysql查询每月不重复的数据_MySQL



bitsCN.com mysql查询每月不重复的数据 Sql代码 mysql> select * from product group by concat(year(last_update),'-',week(last_update),day(last_update)) order by last_update; 或者 Sql代码 mysql> select * from product group by date_format(last_update,'%Y-%m-%d ') order by last_update; Sql代码 +-----+-------------------------+---------------------+ | id | product | last_update | +-----+-------------------------+---------------------+ | 154 | new Ipda-39-76 | 2012-09-28 10:46:46 | | 155 | new Ipda--55-58 | 2012-09-29 10:46:46 | | 156 | new Ipda-3-61-65 | 2012-09-30 10:46:46 | | 157 | new Ipda--22-41-50 | 2012-10-01 10:46:46 | | 159 | new Ipda--36-93-27 | 2012-10-02 10:46:46 | | 160 | new Ipda-3-81-97-69 | 2012-10-03 10:46:46 | | 161 | new Ipda--22-99-5- | 2012-10-04 10:46:46 | | 122 | new Ipda-71 | 2012-10-05 10:46:46 | | 123 | new Ipda--29 | 2012-10-06 10:46:46 | | 124 | new Ipda-3-34 | 2012-10-07 10:46:46 | | 59 | new Ipda-39 | 2012-10-08 10:46:46 | | 60 | new Ipda--55 | 2012-10-09 10:46:46 | | 61 | new Ipda-3-61 | 2012-10-10 10:46:46 | | 62 | new Ipda--22-41 | 2012-10-11 10:46:46 | | | new Ipda--36-93 | 2012-10-12 10:46:46 | | 65 | new Ipda-3-81-97 | 2012-10-13 10:46:46 | | 66 | new Ipda--22-99-5 | 2012-10-14 10:46:46 | | 1 | new Ipda | 2012-10-15 10:46:46 | | 2 | new Ipda- | 2012-10-16 10:46:46 | | 3 | new Ipda-3 | 2012-10-17 10:46:46 | | 4 | new Ipda--22 | 2012-10-18 10:46:46 | | 7 | new Ipda--36 | 2012-10-19 10:46:46 | | 8 | new Ipda-3-81 | 2012-10-20 10:46:46 | | 9 | new Ipda--22-99 | 2012-10-21 10:46:46 | | 15 | new Ipda-3-17 | 2012-10-22 10:46:46 | | 16 | new Ipda--22-27 | 2012-10-23 10:46:46 | | 18 | new Ipda--36-38 | 2012-10-24 10:46:46 | | 19 | new Ipda-3-81-41 | 2012-10-25 10:46:46 | | 20 | new Ipda--22-99-90 | 2012-10-26 10:46:46 | | 34 | new Ipda-3-81-26 | 2012-10-27 10:46:46 | | 35 | new Ipda--22-99-10 | 2012-10-28 10:46:46 | | 38 | new Ipda-3-17-70 | 2012-10-29 10:46:46 | | 39 | new Ipda--22-27-36 | 2012-10-30 10:46:46 | | 41 | new Ipda--36-38-44 | 2012-10-31 10:46:46 | | 42 | new Ipda-3-81-41-9 | 2012-11-01 10:46:46 | | 43 | new Ipda--22-99-90-13 | 2012-11-02 10:46:46 | +-----+-------------------------+---------------------+ 36 rows in set bitsCN.com